<template>
 <div style="margin:20px">
   <div>

     <el-col :span="1.5">
       <el-button
           type="primary"
           plain
           icon="Upload"
           @click="handleImport"
       >导入</el-button>

       <el-button
           type="warning"
           plain
           icon="Download"
           @click="handleExport"
           v-hasPermi="['system:product:export']"
       >导出</el-button>
     </el-col>
   </div>


   <el-table
       :data="tableData"
       style="width: 100%"
       row-key="id"
       border
       lazy
       :load="load"
       :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
   >
     <el-table-column prop="name" label="分类名称" />
     <el-table-column  label="图标" >
       <template #default="scope">
         <el-image v-if="scope.row.imageUrl" style="width: 20px; height: 20px" :src="scope.row.imageUrl"/>
       </template>
     </el-table-column>
     <el-table-column prop="orderNum" label="排序" />
     <el-table-column prop="status" label="状态" >
       <template #default="scope">
         <el-tag :type="scope.row.status===1?'success':'warning'" v-text="scope.row.status===1?'显示':'不显示'"></el-tag>
       </template>
     </el-table-column>
     <el-table-column prop="createTime" label="创建时间" />
   </el-table>

 </div>

  <el-dialog :title="upload.title" v-model="upload.open" width="400px" append-to-body>
    <el-upload
        ref="uploadRef"
        :limit="1"
        accept=".xlsx, .xls"
        :headers="upload.headers"
        :action="upload.url + '?updateSupport=' + upload.updateSupport"
        :disabled="upload.isUploading"
        :on-progress="handleFileUploadProgress"
        :on-success="handleFileSuccess"
        :auto-upload="false"
        drag
    >
      <el-icon class="el-icon--upload"><upload-filled /></el-icon>
      <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
      <template #tip>
        <div class="el-upload__tip text-center">
          <div class="el-upload__tip">
            <el-checkbox v-model="upload.updateSupport" />是否更新已经存在的用户数据
          </div>
          <span>仅允许导入xls、xlsx格式文件。</span>
          <el-link type="primary" :underline="false" style="font-size:12px;vertical-align: baseline;" @click="importTemplate">下载模板</el-link>
        </div>
      </template>
    </el-upload>
    <template #footer>
      <div class="dialog-footer">
        <el-button type="primary" @click="submitFileForm">确 定</el-button>
        <el-button @click="upload.open = false">取 消</el-button>
      </div>
    </template>
  </el-dialog>
</template>

<script setup>
import {listcategory} from "@/api/product/category.js"
import {ElMessage, ElMessageBox} from "element-plus";
import { getToken } from "@/utils/auth";
onMounted( () => {
    initData()
})
//表展示 所需要的数据
 const tableData = ref([])





//导出文件 方法 以及所需参数
const { proxy } = getCurrentInstance();

const data = reactive({
  queryParams: {
  }
});
const { queryParams } = toRefs(data);

/** 导出按钮操作 */
function handleExport() {
  proxy.download('product/category/export', {
    ...queryParams.value
  }, `category_${new Date().getTime()}.xlsx`)
}




const initData =async ()=>{
      const id = ref(0)
      const {data} = await listcategory(0)
      tableData.value = data;
}


const load =async (row,treeNode,resolve)=>{
   const {data} =  await listcategory(row.id)
   resolve(data)

}

/*** 分类导入参数 */
const upload = reactive({
  // 是否显示弹出层（用户导入）
  open: false,
  // 弹出层标题（用户导入）
  title: "",
  // 是否禁用上传
  isUploading: false,
  // 是否更新已经存在的用户数据
  updateSupport: 0,
  // 设置上传的请求头部
  headers: { Authorization: "Bearer " + getToken() },
  // 上传的地址
  url: import.meta.env.VITE_APP_BASE_API + "/product/category/import"
});

/** 导入按钮操作 */
function handleImport() {
  upload.title = "用户导入";
  upload.open = true;
}
/** 下载模板操作 */
function importTemplate() {
  proxy.download("product/category/importTemplate", {
  }, `category_template_${new Date().getTime()}.xlsx`);
};
// 文件上传中处理
function handleFileUploadProgress(event, file, fileList) {
  upload.isUploading = true;
}

// 文件上传成功处理
const handleFileSuccess = (response, file, fileList) => {
  upload.open = false;
  upload.isUploading = false;
  proxy.$refs["uploadRef"].handleRemove(file);
  proxy.$alert("<div style='overflow: auto;overflow-x: hidden;max-height: 70vh;padding: 10px 20px 0;'>" + response.msg + "</div>", "导入结果", { dangerouslyUseHTMLString: true });
  getList(0);
};
// 提交上传文件
function submitFileForm() {
  proxy.$refs["uploadRef"].submit();
}


</script>

<style scoped>

</style>

